Data table to be hidden if its values are not used

[sswaroopgupta]

Consider a spec with data table rows.
If None of the scenarios are using the data table values, the html-report should hide the table by default.

Version

Gauge version: 0.8.3

Plugins
-------
csharp (0.10.0)
html-report (3.1.0)
ruby (0.4.0)
xml-report (0.2.0)